Sony HCD-EP40 - Main Board Schematic Diagram (1;2); FM;AM Tuner Circuitry

HCD-EP30/EP40
1616
IC B/D
IC B/D
IC B/D
2
MAIN BOARD
(2/2)
1
DSIPLAY
BOARD
A
1
4.5 (4.3)
L110, TC102
AM TRACKING
T102
AM FREQUENCY
COVERAGE
L103, TC101
FM TRACKING
L104
FM FREQUENCY
COVERAGE
0 (0.7)
5.4
(0.1)
0
1
(0)
5.2 (0) 5.2 (6.2) 5.2 (6.2) 0 (6.2)
1.3 1.3
1.2 (0.4)
4.5 (0.1)
4.5 (4.3)
4.5 (5.6)
4.5 (4.3)
0
4.5 (0.1)
0 (0.7)
0.2
(0.4)
5.2
(5.4)
1.3 1.3
5.2 (6.2)
5.2 (6.2)
2.8 (3.6)
0
5.2
(6.2)
5.2
(6.2)
1.3 1.3
0.3 (0.5)
0
0 (2.6)
2.6 (0)
5.1
0.9
0.9 2.4 (1.5)
2.6
2.5
0.1
0.1
5.4
0
0.1 (3.1)
0
9.3
9.2
8.5
0.7
0
0
0
5.4
5.6
5.4
4.8
2.4
0
0
4.5
2.4
*
2.2
2.2
1.6
4.5
2.4
FM
LEAD
ANTENNA
ANT1
FM ANT
75Ω
COAXIAL
C157
0.1
C104
0.001
L103
FM RF
C105 0.001
L104 FM OSC
C111
0.001
TP10
(FM VT)
R112
3.3k
+
10V
0.001
0.01
1.2k
0.001
+
50V
0.0015
0.0015
3.9k
+
+
3.9k
50V
50V
6.8k
6.8k
0.0033
0.0033
+
+
+
50V
3.3k
50V
50V
Q103
STEREO/MONO
SWITCHING
Q102
FM/AM BAND
SELECT SWITCH
Q101
FM OSC BUFFER
IC101
FM/AM IF AMB
MIX, MPX, DET, OSC
IC102
FM/AM PLL
4.7k
100p
0.001
0.022
5.6k
0.01
2.2k
50V
5.6k
+
+
0.1
0.1
7.2MHz
+
MTZJ-5.1
+
10V
1µH
Q116, 209, 210
TUNER B+ SWITCH
Q109, 605
B+ SWITCH
0.1
CN101
8P
0.047
AM FERRITE-ROD
ANTENNA
1µH
AM OSC
0.047
+
50V
TP11
(AM VT)
0.022
0.022
10.7MHz
450kHz
+
50V
BUFFER
+
0.047
IC604
RDS DECODER
EP40
100µH
0.1
+
0.1
4.7k
+
+
16V
2.2
50V
T2 T1 VSS2 VDD2 XI XO NC RCLK
CMP
VSS3 VSS1
VDD1
MUX
VREF
RDAT QUAL
MAIN BOARD
(1/2)
1N4148TP
1N4148TP
U
1
u
U
2
u
U
3
u
U
4
u
2SC1923
2.2P
10.7MHz
2SD1616-L
16V
RDSCL
RDSDA
PLLCE
PLLDI
PLLCL
STOUT
SIG
CT
470
16V
6-2. SCHEMATIC DIAGRAM – MAIN Board (1/2) –• See page 23 for Waveforms. • See page 24 for IC Block Diagrams.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
( ) : AM
∗
: Impossible to measure
(Page 21)
(Page 17)
w w w . x i a o y u 1 6 3 . c o m
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7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
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